afl: fix compile warnings for decoder fuzz funcs

src/decode-afl.c

@@ -38,6 +38,16 @@
 #include "flow.h"
 
 #ifdef AFLFUZZ_DECODER
+int AFLDecodeIPV4(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p,
+        const uint8_t *pkt, uint32_t len, PacketQueue *pq)
+{
+    return DecodeIPV4(tv, dtv, p, pkt, (uint16_t)len, pq);
+}
+int AFLDecodeIPV6(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p,
+        const uint8_t *pkt, uint32_t len, PacketQueue *pq)
+{
+    return DecodeIPV6(tv, dtv, p, pkt, (uint16_t)len, pq);
+}
 
 /* stateful processing of data as packets. Because AFL in case of a
  * crash will only safe the last input, we dump all the inputs to a

src/decode.h

@@ -952,10 +952,13 @@ void DecodeIPV6FragHeader(Packet *p, uint8_t *pkt,
 
 void AddressDebugPrint(Address *);
 
-#ifdef AFLFUZZ_DECODER
 typedef int (*DecoderFunc)(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p,
-         uint8_t *pkt, uint32_t len, PacketQueue *pq);
-
+         const uint8_t *pkt, uint32_t len, PacketQueue *pq);
+#ifdef AFLFUZZ_DECODER
+int AFLDecodeIPV4(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p,
+        const uint8_t *pkt, uint32_t len, PacketQueue *pq);
+int AFLDecodeIPV6(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p,
+        const uint8_t *pkt, uint32_t len, PacketQueue *pq);
 int DecoderParseDataFromFile(char *filename, DecoderFunc Decoder);
 int DecoderParseDataFromFileSerie(char *fileprefix, DecoderFunc Decoder);
 #endif

src/suricata.c

@@ -1371,18 +1371,18 @@ static void ParseCommandLineAFL(const char *opt_name, char *opt_arg)
         SpmTableSetup();
         AppLayerProtoDetectSetup();
         if (strcmp(opt_name, "afl-decoder-ipv4") == 0)
-            exit(DecoderParseDataFromFile(opt_arg, DecodeIPV4));
+            exit(DecoderParseDataFromFile(opt_arg, AFLDecodeIPV4));
         else
-            exit(DecoderParseDataFromFileSerie(opt_arg, DecodeIPV4));
+            exit(DecoderParseDataFromFileSerie(opt_arg, AFLDecodeIPV4));
     } else if(strstr(opt_name, "afl-decoder-ipv6") != NULL) {
         StatsInit();
         MpmTableSetup();
         SpmTableSetup();
         AppLayerProtoDetectSetup();
         if (strcmp(opt_name, "afl-decoder-ipv6") == 0)
-            exit(DecoderParseDataFromFile(opt_arg, DecodeIPV6));
+            exit(DecoderParseDataFromFile(opt_arg, AFLDecodeIPV6));
         else
-            exit(DecoderParseDataFromFileSerie(opt_arg, DecodeIPV6));
+            exit(DecoderParseDataFromFileSerie(opt_arg, AFLDecodeIPV6));
     } else if(strstr(opt_name, "afl-decoder-ethernet") != NULL) {
         StatsInit();
         MpmTableSetup();